Taking into account electrical connection between traction substations in calculation of electrified-railroad capacity

Garanin, M. A.; Mitrofanov, A. V.; Dobrynin, E. V.

doi:10.3103/s1068371217030075

Cited by 4 publications

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“…Annual analyses of the operation of the power supply facilities of the Russian Railways show that the share of electricity consumption by non-traction consumers is about 14 % of the total electricity consumption in JSC "Russian Railways", so technical solutions to improve energy efficiency (Andronchev et al, 2020;Garanin et al, 2017;Mitrofanov et al, 2020aMitrofanov et al, , 2020b in both traction and non-traction energetics can bring the company a large profit. However, both in operation and in the planned power supply systems for nontraction consumers of railway transport, the influence of switching power supplies of LED lamps on the quality of electricity is not sufficiently taken into account.…”

Section: Introductionmentioning

confidence: 99%

Quality of electricity in power supply of non-traction consumers of railway transport

Morgunov

Labunsky

2021

Nexo Revista Científica

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The article presents the results of the study of the influence of LED lamps with switching power supplies containing power factor correctors on the quality of electricity in the power supply system of non-traction consumers of railway transport. It is noted that the emission of harmonic components of current by electronic loads can cause deviations in the quality of electricity up to the occurrence of emergency situations due to overloads of low (0.4 kV) and medium (6/10 kV) voltage networks. A non-linear electronic load (LED lamp), although equipped with a power factor corrector, causes the generation of a significant level of current harmonics, which significantly affect the operation of the transformer. As a result, the transformer, calculated taking into account the load factor of 0.7 – 0.8, can not be normally operated in the conditions of using electronic load devices. Mathematical modeling of the correction of the modes of the power supply system with nonlinear single-phase loads is performed, provided that the correction devices made on the basis of several condensers and reactors with nonlinear characteristics are used to balance the modes.

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Section: Introductionmentioning

confidence: 99%

Quality of electricity in power supply of non-traction consumers of railway transport

Morgunov

Labunsky

2021

Nexo Revista Científica

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Development of an Energy System at a Railway Station Using a Gas Turbine Power Station

Blinkova

Garanin

Dobrynin

2021

Transportation Research Procedia

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Intellectual monitoring and planning system of energy efficiency indices of the traction power supply system

Cheremisin

Vilgelm

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The actuality of questions of energy saving in the traction power supply doesn’t give rise to doubts. At the same time in such complex composition as the traction power supply system, taking into account its cooperation with the electric rolling stock, questions solving of the energy efficiency increase must be accompanied by a complex efficiency assessment of the proposed activities. The technical and organizational arrangements implementing with this purpose in mind must not just secure the decline of the power intensity level of the vehicular process, but allow securing this vehicular process in the requisite volumes with excellent prospects at the moment and also be economically expedient. At present no such technologies and especially software tools exist which allow estimating and predicting the alteration of the energy efficiency indices of trains’ traction regarding the current values by change of the engineering parameters of the traction power supply system and the operating data of the railways’ areas. In this article a creation necessity of an intelligent monitoring system and an indices programming of the traction power supply system is justified, allowing determining the influence grade on the basic energy efficiency indices of the operational factors and the characteristics of the traction power supply system and to determine the optimal combination of these factors and characteristic for the justified changes planning of the traction power supply system characteristics and the improvement of the operational indices of trains’ traction in the view of the achievement of the maximal energy efficiency. The architecture of such a system is described. The tasks which solution allows practically realizing and implementing in maintenance the proposed elaborating are formed.

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Taking into account electrical connection between traction substations in calculation of electrified-railroad capacity

Cited by 4 publications

References 0 publications

Quality of electricity in power supply of non-traction consumers of railway transport

Quality of electricity in power supply of non-traction consumers of railway transport

Development of an Energy System at a Railway Station Using a Gas Turbine Power Station

Intellectual monitoring and planning system of energy efficiency indices of the traction power supply system

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